package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.web.admin.service.FileService;
import com.zb.common.minio.MinioProperties;
import io.minio.*;
import io.minio.errors.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.UUID;

@Service
public class FileServiceImpl implements FileService {
    @Autowired
    private MinioClient minioClient;
    @Autowired
    private MinioProperties minioProperties;

    @Override
    public String upload(MultipartFile file) throws ServerException, InvalidBucketNameException, InsufficientDataException, ErrorResponseException, IOException, NoSuchAlgorithmException, InvalidKeyException, InvalidResponseException, XmlParserException, InternalException, RegionConflictException {

            boolean b = minioClient.bucketExists(BucketExistsArgs.builder().bucket(minioProperties.getBucketName()).build());
            if (!b) {
                minioClient.makeBucket(MakeBucketArgs.builder().bucket(minioProperties.getBucketName()).build());
                minioClient.setBucketPolicy(SetBucketPolicyArgs.builder().bucket(minioProperties.getBucketName()).config(createBucketPolicyConfig(minioProperties.getBucketName())).build());
            }
            String fileName = new SimpleDateFormat("yyyyMMdd").format(new Date()) + "/" + UUID.randomUUID() + "-" + file.getOriginalFilename();
            minioClient.putObject(PutObjectArgs.builder().bucket(minioProperties.getBucketName()).stream(file.getInputStream(), file.getSize(), -1).object(fileName).contentType(file.getContentType()).build());
            return String.join("/",minioProperties.getEndpoint(),minioProperties.getBucketName(),fileName);

    }

    private String createBucketPolicyConfig(String bucketName) {
        return String.format("{\"Statement\":[ {\"Action\":\"s3:GetObject\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Resource\":\"arn:aws:s3:::%s/*\"} ],\"Version\":\"2012-10-17\" }",bucketName);
//        return "{\"Statement\":[ {\"Action\":\"s3:GetObject\",\"Effect\":\"Allow\",\"Principal\":\"*\",\"Resource\":\"arn:aws:s3:::%s/*\"} ],\"Version\":\"2012-10-17\" }".formatted(bucketName);
    }
}
